389877547 has 8 divisors (see below), whose sum is σ = 402019632. Its totient is φ = 377820000.

The previous prime is 389877539. The next prime is 389877599. The reversal of 389877547 is 745778983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389877547 - 2³ = 389877539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389877491 and 389877500.

It is not an unprimeable number, because it can be changed into a prime (389877647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11704 + ... + 30277.

It is an arithmetic number, because the mean of its divisors is an integer number (50252454).

Almost surely, 2^389877547 is an apocalyptic number.

389877547 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

389877547 is a deficient number, since it is larger than the sum of its proper divisors (12142085).

389877547 is a wasteful number, since it uses less digits than its factorization.

389877547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42269.

The product of its digits is 11854080, while the sum is 58.

The square root of 389877547 is about 19745.3170903888. The cubic root of 389877547 is about 730.5378828036.

The spelling of 389877547 in words is "three hundred eighty-nine million, eight hundred seventy-seven thousand, five hundred forty-seven".